79442520 has 32 divisors (see below), whose sum is σ = 238327920. Its totient is φ = 21184640.

The previous prime is 79442507. The next prime is 79442551. The reversal of 79442520 is 2524497.

It is a super-2 number, since 2×79442520² = 12622227967900800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330891 + ... + 331130.

Almost surely, 2^79442520 is an apocalyptic number.

It is an amenable number.

79442520 is an abundant number, since it is smaller than the sum of its proper divisors (158885400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79442520 is a wasteful number, since it uses less digits than its factorization.

79442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662035 (or 662031 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 79442520 is about 8913.0533488811. The cubic root of 79442520 is about 429.8837255473.

The spelling of 79442520 in words is "seventy-nine million, four hundred forty-two thousand, five hundred twenty".